Filter cartridge



FIG. 1 is an isometric view of a filter cartridge incorporating our new design, viewed from above, behind, and from the left side of. the filter cartridge;

FIG. 2 is an isometric view of the filter cartridge of FIG. 1, viewed from above, in front of, and from the right side of the filter cartridge;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in FIGS. 1-8 show unclaimed portions of the filter cartridge and form no part of the claimed design. 

CLAIM The ornamental design for a filter cartridge, as shown and described. 